First Advisor

John Dash

Date of Publication

1980

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Physics

Department

Physics

Language

English

Subjects

Ferromagnetic materials, Domain structure

DOI

10.15760/etd.2957

Physical Description

1 online resource (66 p.)

Abstract

An electron microscope with electrostatic lenses was used for high resolution studies of magnetic domains in thin iron films.

Observation methods used to determine the directions of local magnetization in iron thin films were the Lorentz method and the Foucault method.

We studied how Bloch line-crosstie pairs and crosstie main walls behave in applied, in-plane magnetic fields. We found that crosstie main walls remain unchanged until crosstie density goes nearly to zero when the field is applied perpendicular to the main wall. A twisted type of domain appears where crossties disappear.

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/17608

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